Earth fault loop impedance tester for

Test modeFunctionsMeter MS2308Meter MS2307Meter MS23063 pole & 4 pole earthing-resistance testTest voltage: AC 20V/48V√√√Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC√√94Hz/128HzEarthing-resistance range0.02~300k 0.1  ~ 30k 0.1  ~20k Selective mode
(3 pole +     /
4 pole+     )Test voltage: AC 20V/48V√√ Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC√√Earthing-resistance range0.02~20k  0.1~10k Non-auxiliary-polar
mode (      )Test voltage: AC48V√  Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC√√Earthing-resistance range0.02~150  0.1~150 2 pole R~Test voltage: AC20V√√√Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC√√94Hz/128HzEarthing-resistance range0.02~ 300k 0.1 ~ 30k  0.1~20k  2 pole /4pole R  Test voltage: DC20V√√ Earthing-resistance range0.02~ 3k 0.1 ~ 3k Interfering voltage
/current/frequencyInterfering voltage: 1~50V DC/AC√√√Interfering frequency: 16Hz~400Hz√√√Interfering current: 20mA~2A√√ Soil resistivity ρTest voltage: AC20V/48V√√√Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC√√94Hz/128HzRange: 0.02·m~1000k  ·m√√√RK(wire compensation)Test voltage: AC20V/48V√√√Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC√√94Hz/128HzRange:0.02~30 0.1~30 0.1~30  Test current≤ 250 mA≤ 100 mA≤ 100 mA Data storage√√√ USB communication√√√